Walking/Cycling maps

Hi all.  :-) My wife and I are staying on a campsite just outside Aguilas for the next month or so. As I am very keen on walking and cycling, I would like to obtain a local O/S type map which I know from experience in the Costa Blanca can be awkward. I think I need a copy of Map 997, Aguilas, 1:50,000 and would appreciate any advise as to where I can buy one. I already have a copy of Turistca's "The Coasts of Aguilas and Lorca" but would prefer to have  a paper map.. Any help much appreciated. Feliz Navidad folks!  :-)